CN202370783U - Four-stage cylinder guide mechanism of compressor - Google Patents
Four-stage cylinder guide mechanism of compressor Download PDFInfo
- Publication number
- CN202370783U CN202370783U CN201120514837XU CN201120514837U CN202370783U CN 202370783 U CN202370783 U CN 202370783U CN 201120514837X U CN201120514837X U CN 201120514837XU CN 201120514837 U CN201120514837 U CN 201120514837U CN 202370783 U CN202370783 U CN 202370783U
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- guide
- cylinder
- flange
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Abstract
The utility model discloses a four-stage cylinder guide mechanism of a compressor, which comprises a four-stage cylinder. A piston bush is arranged in the four-stage cylinder. The lower portion of the piston bush is provided with a flange. A guide cylinder is arranged between the four-stage cylinder and a crankcase. A guide piston is arranged in the guide cylinder. The surface of the guide piston is provided with a pit. A piston rod is in threaded match with the guide piston. The flange is arranged in the pit. The outer side of the flange is provided with a press plate. The press plate is fixedly connected with the guide piston. A locking nut is arranged in the guide piston and under the flange. The piston rod is matched with the locking nut. The positional accuracy between the compressor piston and the four-stage cylinder can be kept to be very high, accordingly the sealing effect of the piston is improved, high pressure gas does not leak easily, the pressure of the high pressure gas is improved, and gas displacement is achieved. In addition, the four-stage cylinder guide mechanism of the compressor adopts fastening-pressing connection, omits a traditional crosshead structure, is convenient to install, lightens the weight of a connecting rod crankshaft and is capable of effectively reducing the influence of force moment to the crankshaft.
Description
Technical field
The utility model relates to a kind of guide mechanism, particularly relates to the guide mechanism of piston motion in a kind of compressor high pressure stage cylinder.
Background technique
Compressor comprises crankcase, is distributed with the level Four cylinder part on the crankcase, through the level Four compression compression ratio at different levels is distributed rationally.Wherein, third and fourth grade of cylinder part by reason of heavy pressure, cylinder diameter is little, and is high to the positional accuracy of piston motion.In the existing technology, the 4th is connected through crosshead with connecting rod on being installed in bent axle with the piston of fourth stage cylinder, therefore causes piston in movement process, to be difficult to guarantee with the positional accuracy of cylinder block, thereby influences the efficient of gas compression, has also reduced reliability.
Therefore when those skilled in the art are devoted to develop a kind of pressurized air, piston rod and the high guide mechanism of level Four cylinder block positional accuracy.
The model utility content
Because the above-mentioned defective of existing technology, when the utility model technical problem to be solved provides a kind of pressurized air, piston rod and the high guide mechanism of level Four cylinder block positional accuracy.
Be to realize that above-mentioned purpose, the utility model provide a kind of compressor level Four cylinder guidance mechanism, comprise the level Four cylinder that is arranged on crankcase top; Be provided with piston rod in the said level Four cylinder; Said piston rod is outside equipped with piston sleeve; The bottom of said piston sleeve has been wholely set flange; Be provided with guide cylinder between said level Four cylinder and the said crankcase with said level Four cylinder coaxial line; The diameter of said guide cylinder is greater than the diameter of said level Four cylinder; Be provided with guide piston in the said guide cylinder; Said guide piston is connected with the microcephaly of said connecting rod; Said guide piston is provided with pit towards said level Four cylinder one side; Said piston rod stretches in the said guide piston, and with said guide piston screw-thread fit; Said flange is arranged in the said pit; The height of said flange and the deep equality of said pit; The arranged outside of said flange has pressing plate; Said pressing plate is connected through bolt with said guide piston.
Adopt said structure, during compressor operating, piston rod moves in the level Four cylinder, thus pressurized air.Because guide piston and guide cylinder diameter are bigger, and directly do not bear pressurized gas, so the ratio of the positional accuracy between guide piston and the guide cylinder is easier to guarantee.Simultaneously because piston rod is connected with guide piston, thereby the piston rod of assurance pressurized gas in whole motion process, higher positional accuracy between itself and the level Four cylinder body.
Be weight reduction, the bottom of said guide piston is for connecting cavity; Said connecting rod stretches in the said connection cavity and is connected through wrist pin with said guide piston.
For make piston rod can adjust automatically and cylinder between concentricity, in the said guide piston, the below of said flange is provided with locking nut; Said piston rod cooperates with said locking nut; Be provided with packing ring between said locking nut and the said flange.
The beneficial effect of the utility model is: during the utility model work; Be used for to keep very high positional accuracy between piston rod and the level Four cylinder of pressurized gas, thereby improve the sealing effect of piston, make pressurized gas be difficult for revealing; Improve the pressure of pressurized gas, reach air displacement; Simultaneously, the utility model adopts fastening-pressing type to connect, and has saved traditional cross head design, and is easy for installation, and alleviated the weight of connecting bar and crankshaft, can effectively reduce the influence that bent axle receives moment.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the partial enlarged drawing at I place among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
As depicted in figs. 1 and 2; A kind of compressor level Four cylinder guidance mechanism; Comprise the level Four cylinder 2 that is arranged on crankcase 1 top, be provided with the guide cylinder 6 with level Four cylinder 2 coaxial lines between level Four cylinder 2 and the crankcase 1, the diameter of guide cylinder 6 is greater than the diameter of level Four cylinder 2.Guide cylinder 6 is connected with crankcase 1 bolt with level Four cylinder 2.
Be provided with guide piston 7 in the guide cylinder 6, guide piston 7 is connected with the microcephaly of connecting rod 4, and connnecting rod big end is connected with bent axle 5.Guide piston 7 is provided with pit 11 towards piston rod 3 one sides.
Be provided with piston rod 3 in the level Four cylinder 2, piston rod 3 is outside equipped with piston sleeve 13, and the bottom of piston sleeve 13 has been wholely set flange 10, and flange 10 is arranged in the pit 11, and the deep equality of the height of flange 10 and pit 11.The arranged outside of flange 10 has pressing plate 12, and pressing plate 12 and guide piston 7 are connected through bolt.Tight a bolt, make flange 9 by pressing plate 12 extruding.
The bottom of guide piston 7 is for connecting cavity 9, and connecting rod 4 stretches into to connect in the cavity 9 and is connected through wrist pin 8 with guide piston 7.
During compressor operating, piston rod 3 moves in level Four cylinder 2, thus pressurized air.Because guide piston 7 is bigger with guide cylinder 6 diameters, and does not directly bear pressurized gas, so the positional accuracy ratio between guide piston 7 and the guide cylinder 6 is easier to guarantee.Simultaneously, because piston rod 3 is connected with guide piston 7, thereby the piston rod 3 of assurance pressurized gas has higher positional accuracy between the cylinder body of itself and level Four cylinder in whole motion process.If deviation appears in the position between the cylinder body of piston rod 3 and level Four cylinder, owing to be connected for unsteady between piston rod 3 and the guide piston 7, so piston rod 3 can adjust the position automatically, and is concentric with the cylinder body maintenance of level Four cylinder 2.
More than describe the preferred embodiment of the utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variation according to the design of the utility model.Therefore, all technician in the art according to the design of the utility model on the basis of existing technology through the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in determined protection domain by claims.
Claims (3)
1. a compressor level Four cylinder guidance mechanism comprises the level Four cylinder (2) that is arranged on crankcase (1) top; Be provided with piston rod (3) in the said level Four cylinder (2); It is characterized in that: said piston rod (3) is outside equipped with piston sleeve (13); The bottom of said piston sleeve (13) has been wholely set flange (10);
Be provided with guide cylinder (6) between said level Four cylinder (2) and the said crankcase (1) with said level Four cylinder (2) coaxial line; The diameter of said guide cylinder (6) is greater than the diameter of said level Four cylinder (2);
Be provided with guide piston (7) in the said guide cylinder (6); Said guide piston (7) is connected with the microcephaly of said connecting rod (4); Said guide piston (7) is provided with pit (11) towards said level Four cylinder (2) one sides;
Said piston rod (3) stretches in the said guide piston (7), and with said guide piston (7) screw-thread fit; Said flange (10) is arranged in the said pit (11); The deep equality of the height of said flange (10) and said pit (11); The arranged outside of said flange (10) has pressing plate (12); Said pressing plate (12) is connected through bolt with said guide piston (7).
2. compressor level Four cylinder guidance as claimed in claim 1 mechanism is characterized in that: the bottom of said guide piston (7) is for connecting cavity (9); Said connecting rod (4) stretches in the said connection cavity (9) and is connected through wrist pin (8) with said guide piston (7).
3. according to claim 1 or claim 2 compressor level Four cylinder guidance mechanism is characterized in that: in the said guide piston (7), the below of said flange (10) is provided with locking nut (15); Said piston rod (3) cooperates with said locking nut (15); Be provided with packing ring (14) between said locking nut (15) and the said flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120514837XU CN202370783U (en) | 2011-12-12 | 2011-12-12 | Four-stage cylinder guide mechanism of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120514837XU CN202370783U (en) | 2011-12-12 | 2011-12-12 | Four-stage cylinder guide mechanism of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370783U true CN202370783U (en) | 2012-08-08 |
Family
ID=46594488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120514837XU Expired - Fee Related CN202370783U (en) | 2011-12-12 | 2011-12-12 | Four-stage cylinder guide mechanism of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339241A (en) * | 2021-07-17 | 2021-09-03 | 上海宇盛压缩机械有限公司 | Installation box body for compressor and three-stage air compressor applying same |
-
2011
- 2011-12-12 CN CN201120514837XU patent/CN202370783U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339241A (en) * | 2021-07-17 | 2021-09-03 | 上海宇盛压缩机械有限公司 | Installation box body for compressor and three-stage air compressor applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |